Silentnight Pocket Essentials 800 Memory Mattress
Mattress
Silentnight Pocket Essentials 800 Memory Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
24
Layers
2
Layer Details
- Memory foam. This top layer gently moulds to the contours of your body, which means pressure points at your hips and shoulders get some relief. It provides that cushioned, hugging comfort memory foam is known for.
- Mirapocket springs. Beneath the foam, 800 Mirapocket springs respond independently to your body's movements. This gives zoned support and improved spinal alignment, so your back stays in a healthier position through the night.
Layer details from silentnight.co.uk product page, September 2026.
- 90cm each, every night: Two people sharing get 90cm of width apiece, so a partner who turns over frequently becomes far easier to sleep through.
- Springs plus space: The 800 Mirapocket springs respond independently to movement, and at this width that isolation is backed by physical distance, a combination no comfort layer alone can match.
- Room for company: When a child wanders in at 3am or the dog treats the bed as routine, a full 6ft of width means nobody ends up clinging to an edge.
- Affordable at full size: This model sits at the value end of the pocket sprung market, so the jump to a super king is less painful than it would be further up the range.
- Fills a large master properly: In a period property or a big new build master bedroom, a UK king can look undersized; the super king's 180cm width suits the proportions of the room.
This size suits you if...
You share the bed every night with a partner who fidgets, your children or pets regularly join you before morning, or you have a large master bedroom where a UK king would look lost. Allow at least 3m x 2.9m of floor space, with more feeling comfortable once you add bedside tables on both sides.
Consider another size if...
Your bedroom measures less than the 3m x 2.9m we suggest, or you mostly sleep alone. We'd recommend the UK king instead: it's 30cm narrower, the same length, and we suggest a room of at least 2.7m x 2.9m for it.
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Is the Silentnight Pocket Essentials 800 super king big enough for a family who share the bed?
It's the most realistic size for it. At 180 x 200cm, two adults get 90cm each, so a child climbing in overnight takes a share rather than the middle of yours. The memory foam layer cushions everyone, though be aware the mattress itself carries only a 5 year warranty regardless of how many people use it.
How much bigger is the super king than the king for this Silentnight mattress?
The UK super king is 30cm wider than the UK king, and both are the same length at 200cm. That extra width is entirely usable sleeping space, roughly a shoulder's worth per person. If your room is tight, we suggest at least 2.7m x 2.9m for the UK king, against 3m x 2.9m for the UK super king.
What room size do I need for the Silentnight Memory Pocket 800 in a super king?
We suggest at least 3m x 2.9m. That allows for the 180 x 200cm mattress plus walking space and drawers that actually open. Before ordering, check the door swing and any landing turns too; a mattress this size is the point where staircases start to bite.
Will a restless partner still wake me on the super king Pocket Essentials 800?
Much less than on a smaller size. The 800 Mirapocket springs move independently, so a turn on one side transmits little to the other, and with 90cm of width each you're simply further from the disturbance. Distance does more than any comfort layer, which is the main argument for this size.
Where can I compare prices for the Pocket Essentials 800 in a super king?
Use the table on this page. The prices shown here are updated as retailers change them, so it's a more reliable picture than a search that mixes up sizes. Make sure any listing you click through to says UK super king, 180 x 200cm, as the UK king looks similar at a glance.